How many doses will I need to receive in order for the vaccine to be fully effective?

Updated Jan. 6, 2022 

Two doses of the vaccine are required. For the Pfizer-BioNTech Covid-19 Vaccine, the doses have to be a minimum of three weeks apart. For the Moderna Covid-19 Vaccine, the doses have to be a minimum of four weeks apart. 

When you receive your initial dose, you will be given information about the earliest that you can get your second dose and instructions for scheduling a second dose. At this time, you will be responsible for scheduling your second. Stamps will send out reminders when it is time to get a second dose. 

There is growing evidence that protection against severe illness, hospitalization, and death from Covid-19 wanes with time in those who have received the primary series of the Pfizer, Moderna, or Johnson & Johnson vaccine. This reduction in protection occurs particularly in older individuals. A booster dose of vaccine stimulates the immune system to reestablish protective levels of immunity.